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Green-Tea.pptx
- 1. Green Tea Health Benefits By : Nutra catch
- 2. Health Benefits of Green Tea • Reduced fat absorption • Increased energy expenditure • Weight loss • Reduced number of cavities • Reduced LDL oxidation • Reduced heart disease risk • Increases insulin sensitivity • Inhibition of cancer development PBRC 2011
- 3. Green Tea and Weight Loss • Catechins influence intestinal and cell metabolism in several ways: –Inhibiting intestinal lipases –Decreasing fat absorption –Increasing fat excretion –Increasing uncoupling proteins –Increasing thermogenesis –Decreasing lipogenic enzymes –Suppressing appetite PBRC 2011
- 4. Cardiovascular Disease • Consumption of ~32 ounces of green tea by Japanese men resulted in a 58% lower risk of dying from coronary heart disease than those who consumed about 10 ounces per day. • Dutch men and women who consumed about 13 ounces daily of black tea had a 68% lower risk of myocardial infarction (heart attack) than those who did not drink tea. PBRC 2011
- 5. Diabetes • Improves glucose tolerance. • Increases insulin sensitivity. • EGCG is the most active catechin in increasing insulin sensitivity and glucose uptake.. PBRC 2011
- 6. Cancer • Studies have clearly demonstrated the preventative effects of green tea and EGCG against many types of cancers at any stage (initiation, promotion, or progression). • The National Cancer Institute (NCI) has funded extensive research with green tea as a potential cancer chemoprotective agent. PBRC 2011
- 7. Dental Benefits • Prevents dental caries (cavities) by preventing bacterial growth • Increases the resistance of tooth enamel to acid induced erosion, and displays anti- inflammatory properties by reducing gum disease (gingivitis) PBRC 2011
- 8. Microbial Diseases • Increases antibiotic effectiveness • Effective in preventing HIV infection at the initial step in the HIV-1 infection process PBRC 2011
- 9. Neurodegenerative Diseases Free radical damage and oxidative stress are thought to lead to: • Parkinson’s disease • Alzheimer’s disease and other diseases such as diabetes and cancer. Green tea have shown significant protection against the development of these diseases. PBRC 2011
Hinweis der Redaktion
- Catechins influence intestinal and cell metabolism in several ways: Inhibiting intestinal lipases – reduces fat absorption Decreasing fat absorption – by tying fat particles so they are passed through Increasing fat excretion – by inhibiting absorption, fat is eliminated through the intestinal track Increasing uncoupling proteins – green tea promotes use of energy as heat Increasing thermogenesis – expending energy as heat increases thermogenesis without increasing heart rate Decreasing lipogenic enzymes – lipogenic enzymes in the liver are not as active with EGCG intake Suppressing appetite – EGCG actually has an anorexic effect on appetite
- Consumption of black tea which is notably lower in catechins, was also shown to provide significant benefits. In a 6 year old Dutch stud of over 4,500 men and women, those who consumed more that 3 cups (about 13 ounces daily) of black tea had a 68% lower risk of myocardial infarction (heart attack) than those who did not drink tea. Therefore, even moderate amounts of tea consumption can potentially provide significant cardiovascular protection.
- Green tea consumption can also benefit diabetics. In a study on human subjects, the consumption of green tea was shown to improve glucose tolerance. Basal blood glucose levels did not change. In laboratory animals, long-term administration of green tea extract increased insulin sensitivity. In cell culture studies, EGCG was the most active catechin in increasing insulin sensitivity and glucose uptake in isolated fat cells.
- In the scientific world, green tea is probably best known and most studied for its effects on cancer prevention. Although epidemiological studies have not shown a clear link between cancer prevention and green tea, animal studies have been very convincing. They have clearly demonstrated the preventative effects of green tea and EGCG against liver, stomach, breast, prostate, lung, and skin cancers at any stage (initiation, promotion, or progression) The National Cancer Institute (NCI) has funded extensive research with green tea as a potential cancer chemoprotective agent. A study is underway to see the chemoprotective effect of POLYOHENON E (a decaffeinated green tea extract currently in phase 2 clinical trials).
- Green tea has been known to prevent dental caries (cavities) by preventing the attachment of the bacteria associated with dental caries to the teeth. Green tea increases the resistance of tooth enamel to acid induced erosion, and displays anti-inflammatory properties by reducing gum disease (gingivitis)
- Recently, green tea has been successful in increasing antibiotic effectiveness in multi-drug resistant Staphylococcus aureus infections. In addition, EGCG has been shown to be effective in preventing HIV infection at the initial step in the HIV-1 infection process.
- According to the free radical theory of aging, increased free radical generation and oxidative stress are the basis for changes that lead to age associated functional deterioration and neurodegeneration. Several age associated diseases such as cancer, Parkinson’s disease, Alzheimer’s disease, cardiovascular disease, and diabetes have their etiologies linked to free radical damage. Due to the antioxidant properties of green tea and it’s extracts, several studies have examined the effects of green tea consumption on these age related conditions. Oxidative stress, especially death of dopaminergic neurons is believed to be a major contributor to the pathogenesis of Parkinson’s Disease. Recently, misregulated iron metabolism in the brain has also been implicated as a potential contributor. Several studies using green tea have shown significant protection against the development of this disease. Because of its antioxidant and iron chelating properties, EGCG was believed to be the protective agent responsible for these results. Although there is currently no epidemiological evidence on the benefit of green tea for Alzheimer’s Disease in humans, there have been several studies in laboratory animals and cell cultures which suggest that EGCG may delay this disease. In laboratory animals, EGCG had a significant antioxidant effect and protected against neurological deficits.
- According to the free radical theory of aging, increased free radical generation and oxidative stress are the basis for changes that lead to age associated functional deterioration and neurodegeneration. Several age associated diseases such as cancer, Parkinson’s disease, Alzheimer’s disease, cardiovascular disease, and diabetes have their etiologies linked to free radical damage. Due to the antioxidant properties of green tea and it’s extracts, several studies have examined the effects of green tea consumption on these age related conditions. Oxidative stress, especially death of dopaminergic neurons is believed to be a major contributor to the pathogenesis of Parkinson’s Disease. Recently, misregulated iron metabolism in the brain has also been implicated as a potential contributor. Several studies using green tea have shown significant protection against the development of this disease. Because of its antioxidant and iron chelating properties, EGCG was believed to be the protective agent responsible for these results. Although there is currently no epidemiological evidence on the benefit of green tea for Alzheimer’s Disease in humans, there have been several studies in laboratory animals and cell cultures which suggest that EGCG may delay this disease. In laboratory animals, EGCG had a significant antioxidant effect and protected against neurological deficits.